Year	% of total population
1960	3.6717602357269805
1961	3.654255149361358
1962	3.654527273674254
1963	3.6554341998919693
1964	3.65680584223525
1965	3.667119716464437
1966	3.6847480832190826
1967	3.706903684255874
1968	3.732203730184897
1969	3.757544220412949
1970	3.782238700212999
1971	3.809169755388668
1972	3.8416273720349223
1973	3.8806226474417014
1974	3.9274774663976895
1975	3.9776321749917947
1976	4.02724762528516
1977	4.077219212160958
1978	4.129761760888103
1979	4.181890243231925
1980	4.222249714323966
1981	4.248760324317908
1982	4.268660633874462
1983	4.28856021766362
1984	4.312961513268386
1985	4.342722668128856
1986	4.376191588299189
1987	4.411556788031189
1988	4.452778627520287
1989	4.503664196235828
1990	4.556492668287665
1991	4.611425320275793
1992	4.675264918837584
1993	4.750874278438607
1994	4.82938586930004
1995	4.909655176384109
1996	4.99199179039517
1997	5.075677068666944
1998	5.166732264291398
1999	5.260615535440074
2000	5.35326235779548
2001	5.448105148664503
2002	5.546166919806889
2003	5.641732926024587
2004	5.7276645206876085
2005	5.80858580466331
2006	5.8898515578245005
2007	5.964229259544759
2008	6.029668642222997
2009	6.095474597683259
2010	6.1681319619085695
2011	6.257255816115715
2012	6.36568676587548
2013	6.491443825283792
2014	6.64386651967786
2015	6.831282772540272
2016	7.0384758331074995
2017	7.266751128785743
2018	7.513556446940286
2019	7.767215022749412
2020	8.015446399149353
2021	8.225581896455747
2022	8.434557201040406
2023	8.68013120249526